Question about Technics SCEH790 CD Shelf System

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How to avoid drawer not opening in the future tips.

Can unit be safely inspected to check gears & track?
How can danger from laser be reduced?
What is the level of danger from the laser if CD is switched off:

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The taping on top worked best
On instpecting the track no obvious cause of problem seen and understanding of mechanism helps
See how it will go

Posted on Jul 18, 2008


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Does not want to slide in

I am a bit surprised it worked through 12 min cycle without drawer fully closed. If you had to force drawer to close position then I would suggest you inspect the lid seal for damage. It can cause leakage in future and shutdown dishwasher.

Jan 21, 2013 | Fisher and Paykel 23 in. DD-603SS Built-in...


Tips For Fuel Saving _ Hypermiling

T i p s f o r H y p e r m i I i n g.
The points indicated will help a long way to improve performance of vehicle, engine life, reduce maintenance bills except the periodic checkups, and lastly improve a great deal in going that extra mile for your costly fuel. Regarding Driving habits: Never ride on the clutch. Never ride on higher gear at lower RPM- avoid the engine pinking as one tends to waste fuel to power the engine. Avoid accelerating and braking at short length. Decelerate using lower gear without powering engine unnecessarily on seeing an obstruction, junction or stop. Highway driving - keep a steady average in top gear without over /under powering. Wind up window glass at higher speeds to avoid drag. Cut off a/c moments before you stop as sufficient cooling will remain also reducing strain on engine. Regular washing/waxing/polishing of body will improve aerodynamics reducing drag. Cut off engine at longer duration traffic signals, level crossings, traffic jams. . Fill with best grade of fuel as it improves power/performance of engine, incrementing the mileage ratio. Different grades are available but one can choose the better grade to give a longer life span specially for diesel engines. It has better octane value and purity. If possible try to fill up the tank as it reduces: Avoid Trips only to fill fuel. Built up of volatile gas over a dry tank leaking. Loss due to the numerous short fills -a percentage could be expected. Check up only at a determined period. Air Pressure confirmed as specified not less. The multi point check up including Engine oil, fluids, coolants, etc., Avoid changing workshops but keep the log book updated. Confirm with the service manager of spares changed- only with Originals. Brake pads, bearings, hubs are to be checked for obstructions to free rolling. Any new noise should be monitored getting worse wanting an inspection/rectification. Many faults go unnoticed by new users but will require the assistance of a friendly auto enthusiast.
Overall drive gently without emotional racing
Donald D Cruz

on Sep 15, 2010 | Suzuki SX4 Cars & Trucks

1 Answer

Won't changing up gear

The GearBox-press and clutch disk needs revision.
This happens when you avoid using the brakes, more like reducing speed using the gears.
It is very dangerous if it brakes by itself when riding, So I suggest you start by checking the Clutch disk and the Press may be worn out..

Jun 22, 2012 | 2009 kawasaki Ninja ZX6R Monster Energy

2 Answers

Cd player won't open

The drawers on many CD players are belt driven. The belt may have gone bad. Others have a gear drive with a clutch plate that slips if the mechanism is overloaded. An excess of dirt or dust in the gears would be an overload. (The worst case I ever saw was a CD player in a woodworking shop. I had to clean out a lot of very fine sawdust from the plastic gears and lube them with paste wax before it would work.)

Caution: avoid looking into the CD laser lens when you have the unit plugged in. Even though you can't see the beam, it can burn a hole in the retina of your eye, leaving a possibly permanent blind spot. When I work on a problem like this, I turn the drawer motor pulley or gear by hand to test the mechanism so I don't need power. That way I can feel any drag or catch points that need to be addressed. Once it works manually, I avoid putting my face over the unit while I apply power for a pre-closure test.

Oct 24, 2010 | Sansui CDVD9000

1 Answer

The drawer on the xbox 360 will not open

There is grime build up in the reducer gears that
release the lasers assambley and pushs out the tray.
The motor is not strong enough to break
the magnet clamp that holds the game disk between
the hub and the spindle motor .

If you press eject wait 1 second and then
slap the top of the unit hard over the drive this will
break the seal and the tray should open .

try a little Vaseline under the tray in the tracks
then open and close it to work it in, this
may help a little but the drive will have to
be opened and cleaned to resolve this problem

if you have any questions feel free to ask.


Nov 20, 2009 | Microsoft Xbox 360 Console

1 Answer

What does error code E-9101 mean?

According to the 700s/500s service manual:
E-9101 - MECHANICAL TIME OUT - Mechanical operation did not end in allotted time (CLAMP: 4s) - The loading mechanism is defective.
It means that, for some reason, the mechanism that moves the optical assembly couldn't move to the right position in the limit time of 4 seconds. If there's no CD inside, from the tranparent ring probaly you'll see that the sliding door inside the unit has remained improperly closed (the laser pickup couldn't "see" anything).
Unscrew the 4 black screws under your unit, and remove the cover. If the optical unit has remained exposed (probably not), be careful to not touch the lens. On the left part there's a smal motor and gear mechanism. Try to manually rotate the gears, see how the mechanism works (sliding door opens, optical pickup become exposed and goes up) and check if there's any strange behavior (hard to move, strange clicking noises). Also check for excess dirt over moving parts and gears in the whole unit. To clean it, unscrew the 4 black screws that hold all this unit, remove it, clean it with some soft brush and cloth (avoid using air pressure, also avoid breath blowing anything). Replace the grease with some plastic-safe grease and remount everything.
If nothing of this helps, maybe your sliding motor has some problem. In this case, only an repair shop could help.
Best Regards Fernando

Jul 24, 2009 | Pioneer CDJ-700S Turntable

1 Answer

Cdr20 drawer is jammed ERROR message

Try taking the unit apart it mostlikly jamed or jumped track try re ajusting it that would prob work, another thing is to try messing with the gears that could aslo work

Oct 18, 2008 | Harman Kardon CDR20 CD Player

1 Answer

My C.D Drawer is stick I can't get it open.

First off, what is the make \model of your machine so I can help you better. Otherwise, take the cover of the unit off and look to see if you can see any small gears at the front of the drawer. If so use a small screwdriver to turn the gear or gears. The laser assy. will move down first to get out of the way of the drawer then the drawer will slide open.
If you cannot see any gears you must get the drawers' faceplate off. Once off you should be able to see gears or a belt and motor that you spin to get the laser assy. down. Once the laser assy. is down you will be able to slide the drawer out by hand.
Replace belt if there is one. Good Luck!!


Oct 01, 2008 | Optimus Televison & Video

3 Answers

Tray Opens and Closes Repeatedly After Disc Jam

check to see if tray is out of alignmnet ..also check to see if 5 or 7 pin flat ribbon cable form servo drive board to tray got dislodged from connector or is bent,cut etc...

Dec 03, 2007 | Sony DVP-NC650V Multi-disc DVD Player

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